A New York Times bestselling series
A USA TODAY bestselling series
A California Young Reader Medalwinning series

Sophie uncovers shocking secretsand faces treacherous new enemiesin this electrifying third book in the Keeper of the Lost Cities series.

Sophie Foster is ready to fight back.

Her talents are getting stronger, and with the elusive Black Swan group ignoring her calls for help, shes determined to find her kidnappersbefore they come after her again.

But a daring mistake leaves her world teetering on the edge of war, and causes many to fear that she has finally gone too far. And the deeper Sophie searches, the farther the conspiracy stretches, proving that her most dangerous enemy might be closer than she realizes.

In this nail-biting third book in the Keeper of the Lost Cities series, Sophie must fight the flames of rebellion, before they destroy everyone and everything she loves.